Home / 19,147.11-26,419.79-10,648.12

Finding the Fourth Proportional to 19,147.11, 26,419.79 and 10,648.12

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Solution

The fourth proportional to 19,147.11, 26,419.79 and 10,648.12 is: 14,692.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.11 : 26,419.79 = 10,648.12 : x
  2. Step 2: Convert to fraction form
    19,147.11/26,419.79 = 10,648.12/x
  3. Step 3: Cross multiply
    19,147.11x = 26,419.79 × 10,648.12
  4. Step 4: Simplify right side
    19,147.11x = 281,321,094.29
  5. Step 5: Solve for x
    x = 281,321,094.29/19,147.11
  6. Step 6: Final answer
    x = 14,692.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.